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US Patent: 734,799
Tool Grinding Machine
Patentee: John Sellers Bancroft (exact or similar names) - Philadelphia, PA USPTO Classifications: 451/213, 451/365, 451/377, 451/406, 74/25, 74/40, 74/99R Tool Categories: metalworking machines : grinders : tool grinders Assignees: William Sellers & Co., Inc. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 11, 1903 Granted: Jul. 28, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for William Sellers & Co.

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